CN215436099U

CN215436099U - Seat sliding device for automobile

Info

Publication number: CN215436099U
Application number: CN202122371592.6U
Authority: CN
Inventors: 李锺淳
Original assignee: Wendeng Dashi Auto Parts Co ltd
Current assignee: Wendeng Dashi Auto Parts Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-01-07
Anticipated expiration: 2031-09-28

Abstract

The utility model provides a seat slider for car is provided with the trapped orbit of installing on the inside floor of car and installs the removal track in the seat below, is provided with the slip gear box between trapped orbit and the removal track, the slip gear box is provided with the worm that links to each other with the motor, the worm wheel that meshes mutually with the worm, and the lead screw that links to each other and integrative rotation with the worm wheel, be provided with the guide way that meshes mutually with the worm wheel on the trapped orbit, the slip gear box can drive the removal track and go forward or retreat the motion on the trapped orbit, replaces current lead screw structure through the passageway type cross section structure track that adopts intensity to strengthen, ensures to bear the higher strength striking, has eliminated and has leaded to intensity reduction, crooked problem when current lead screw takes place the striking, has guaranteed passenger's safety, has improved car seat fore-and-aft stroke volume.

Description

Seat sliding device for automobile

Technical Field

The present invention relates to a seat device for a vehicle, and more particularly, to a seat slide device for a vehicle.

Background

The automobile seat bottom is generally provided with a fixed slide rail fixed on an automobile floor metal plate and a sliding slide rail fixed at the bottom of the automobile seat, the sliding slide rail can move back and forth on the fixed slide rail, passengers can adjust the front and back positions of the seat according to self conditions, sliding devices capable of adjusting the automobile seat are arranged on the fixed slide rail and the sliding slide rail, and the sliding devices are provided with a manual sliding device capable of manually adjusting the position and an electric sliding device capable of manually adjusting the position through motor driving.

Common electrodynamic type slider generally comprises fixed slide rail front and back fixed lead screw and the gear box that can remove and be fixed in the slip slide rail along with the lead screw on the existing market, and the slide rail gear box comprises the worm wheel with lead screw meshing, provides the worm gear of worm wheel revolving force, provides worm gear pivoted electric motor and constitutes. When the worm gear and the worm wheel are rotated by the operation of the electric motor, the worm wheel moves back and forth along with the guide screw rod, so that the sliding slide rail moves back and forth relative to the fixed slide rail, and the front and back positions of the seat can be adjusted.

However, the amount of movement of the seat back and forth of the electric slide device having the above-described structure is restricted by the length of the lead screw, and it is expected that the longer the lead screw, the greater the weight of the parts and the higher the manufacturing cost of the product, and that the lead screw sags when the overall length of the lead screw is relatively large, causing vibration and noise during the operation of the slide rail, causing consumer dissatisfaction, and particularly, when a vehicle collision accident occurs, the lead screw may be impacted to the front or rear side thereof, causing the lead screw to bend, thereby reducing the strength thereof, and the strength of the lead screw after bending may be significantly reduced, thereby causing a breakage problem more easily.

At present along with environmental protection intelligence unmanned driving car technique more and more mature, need the front and back row seat to remove and need comparatively freedom for showing comfortable indoor space, indoor space overall arrangement needs the facility, and stroke volume will be longer than general vehicle around consequently the seat, but current electrodynamic type slider can't satisfy this condition, so need develop novel electrodynamic type slider.

In summary, the prior art electric sliding device for a car seat is not easy to design and increase the amount of front and rear stroke, and is prone to cause the problems of bending of the lead screw and reduction of strength when a car collision accident occurs.

Disclosure of Invention

In order to solve the problems, the application provides a seat sliding device for an automobile, which aims to solve the problems that the electric sliding device for the automobile seat in the prior art is not easy to design and increases the front and rear stroke, and the bending and strength reduction of a guide screw rod easily occur when an automobile collision accident happens.

The application provides a seat slider for car is provided with the trapped orbit of installing on the inside floor of car and installs the removal track in the seat below, is provided with the slip gear box between trapped orbit and the removal track, the slip gear box is provided with the worm that links to each other with the motor, with worm engaged with worm wheel, and the lead screw that links to each other and integrative rotation with the worm wheel, be provided with the guide way with worm wheel engaged with on the trapped orbit, the slip gear box can drive the removal track and advance or retreat the motion on the trapped orbit.

Preferably, the worm is arranged along the direction of crossing the front-back movement direction of the moving track, and the worm wheel and the screw rod are arranged along the front-back movement direction of the moving track.

Preferably, the worm wheel and the screw rod are integrally formed.

Preferably, the worm wheel has a rotation center shaft extending in an axial direction at a center thereof, the lead screw may be snapped to an outer circumferential surface of the rotation center shaft of the worm wheel, and a fastening member is provided at an end of the rotation center shaft.

Preferably, the sliding gear box is further provided with a housing rotatably mounting the worm, the worm wheel and the lead screw, and the housing may be fixedly mounted to the moving rail.

Preferably, the housing is provided with a first penetrating portion for mounting the worm and a second penetrating portion for rotatably mounting the worm wheel and the screw, the first penetrating portion is provided in a direction crossing a forward and backward movement direction of the moving rail, and the second penetrating portion is provided in a direction coinciding with a movement direction of the moving rail.

Preferably, the fixed rail is of a channel-shaped structure with an open top, and is provided with a bottom surface portion close to one side of the floor inside the automobile, two ends of the bottom surface portion are arranged opposite to each other, a side wall portion is bent in the vertical direction and extends towards the top, a pair of reinforcing portions horizontally extend from upper free ends of the pair of side wall portions and then are bent downwards to the inner space again, and guide grooves are formed in partial sections of a horizontal plane and a vertical plane at the bending position of the reinforcing portions.

Preferably, the guide groove is formed in the form of a cut-out of material at the bend of the reinforcement.

The utility model has the beneficial effects that:

the utility model provides a seat slider for car, the longer lead screw of length that the material used together is assisted with the slide rail that original slider adopted for supporting seat back-and-forth movement has been got rid of, the change is the channel type cross-section structure track of intensity enhancement, it is with the sliding gear box structure of channel type cross-section structure track assorted to assist the material change with original slip, the track design of the channel type cross-section structure of intensity enhancement, vibration and noise when having eliminated among the prior art the drop deformation of lead screw and having caused the sliding gear box when removing, guaranteed not because of applying the external force bending deformation to slider fore-and-aft direction when the vehicle takes place the collision accident, passenger's safety has been guaranteed. Get rid of among the prior art lead screw and reduce slider whole weight, reduce manufacturing cost and bring economic benefits, can set to the seat fore-and-aft stroke that is longer than former stroke volume through above design, provide the slider that meets the requirements for environmental protection intelligence unmanned vehicle.

Drawings

FIG. 1 is a schematic view of the overall assembly of the present application;

FIG. 2 is an exploded view of the present application;

FIG. 3 is an exploded view of the sliding gear box;

FIG. 4 is a cross-sectional schematic view of a worm gear and lead screw;

FIG. 5 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 6 is a schematic cross-sectional view B-B of FIG. 1;

FIG. 7 is a schematic view of the guide groove cooperating with the lead screw, worm wheel and worm;

FIG. 8 is a top view of the guide groove in cooperation with the lead screw, worm wheel and worm;

the symbols in the drawings illustrate that:

10. fixing a track; 11. a guide groove; 12. a bottom surface portion; 13. a sidewall portion; 14. a reinforcing portion;

20. a moving track; 21. a roller; 22. a mounting frame; 23. an insertion portion;

30. a sliding gear box; 31. a worm; 32. a worm gear; 32a. a central axis of rotation; 33. a screw rod;

34. a housing; 34a. a first through-penetration portion; 34b. a second through-penetration.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present application more apparent from the following detailed description, which is to be read in connection with the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are merely for explaining the present application and are not intended to limit the present application, and the terms described herein are terms defined in consideration of functions in the present invention and may be different according to the intention or custom of a user or an operator, and therefore, the definitions of the terms should be expressed in the entire specification based on technical contents, on the other hand, the embodiments are only exemplary matters of components set forth in claims and do not limit the scope of the embodiments, and the scope of the claims should be interpreted based on the technical ideas throughout the specification.

As shown in fig. 1, a seat slide apparatus for an automobile is provided with a fixed rail 10 installed on an inner floor of the automobile, a moving rail 20 installed below a seat cushion and movable along the fixed rail 10, and a slide gear box 30 located between the fixed rail 10 and the moving rail 20, the slide gear box 30 driving the moving rail 20 to move forward and backward on the fixed rail 10.

As shown in fig. 2, the fixed rail 10 has a channel structure with an open top, and the guide grooves 11 are uniformly formed in the longitudinal direction of the inner side of the fixed rail to guide the sliding gear box to move forward and backward along the fixed rail 10 to drive the movable rail 20, and to increase the stroke distance of the fixed rail 10 to enhance the structural strength thereof.

As shown in fig. 2 and 5, the fixing rail 10 is provided with a substantially flat bottom surface portion 12 on a side close to an interior floor of the vehicle, both ends of the bottom surface portion 12 are disposed opposite to each other, a side wall portion 13 bent in a vertical direction and extending toward the top, and a pair of reinforcing portions 14 horizontally extending from upper free ends of the pair of side wall portions 13 and then bent downward again into an interior space, and the cross-sectional structure of the fixing rail 10 in this embodiment is just one of the embodiments and is not limited to the shape in the drawing, and a plurality of mounting holes are provided on a side of the fixing rail 10 close to the interior floor of the vehicle, so that the fixing rail 10 is firmly mounted on the floor of the vehicle interior.

As shown in fig. 2, 7 and 8, the guiding groove 11 is provided as an opening evenly distributed at the bending points of the pair of reinforcing parts 14, that is, the guiding groove 11 is formed on a part of the cross section of the horizontal plane and the vertical plane of the bending points of the reinforcing parts 14, and it may be provided as an opening formed by cutting a part of the material.

As shown in fig. 2, the moving rail 20 is provided with a flat mounting frame 22, and the mounting frame 22 is provided with a plurality of mounting holes so as to be fixed to the cushion portion of the upper seat, i.e., the mounting frame 22 is positioned above the moving rail 20 for being coupled to the bottom of the seat to support the load applied to the seat.

As shown in fig. 5 and 6, the moving rail 20 is provided with a pair of insertion portions 23, the insertion portions 23 are U-shaped, the two insertion portions 23 are oppositely arranged, the inner side of the insertion portion 23 is connected with the mounting frame 22, rollers 21 are arranged on both sides of the insertion portion 23, and a plurality of rollers 21 are symmetrically arranged on the insertion portion 23 at proper intervals.

The moving rail 20 is inserted into the reinforcing part 14 of the fixing rail 10, at which the roller 21 is positioned above the bottom surface part 12, the roller 21 is rolled above the lower surface part 12 and spaced apart from the side wall part 13 by a predetermined interval, and the bent part of the reinforcing part 14 is positioned in the insertion part 23.

As shown in fig. 2 and 3, the slide gear box 30 is provided with a worm wheel 32 engaged with a worm 31, the worm 31 is mounted on the moving rail 20 and is disposed along a direction crossing a forward and backward moving direction of the moving rail 20, or may be disposed along a direction perpendicular to the forward and backward moving direction of the moving rail 20, and the worm wheel 32 and the screw 33 are connected to the moving rail 20 and are disposed along the forward and backward moving direction of the moving rail 20.

The worm wheel 32 and the screw rod 33 are coaxially disposed, the worm wheel 32 and the screw rod 33 may be integrally formed, that is, the worm wheel 32 and the screw rod 33 are integrally formed on the same axis, or the worm wheel 32 and the screw rod 33 may be formed by separate members.

As shown in fig. 4, in order that the worm wheel 32 and the lead screw 33 are composed of separate members, that is, the worm wheel 32 has a rotation center shaft 32a extending in an axial direction at the center thereof, and the lead screw 33 is mounted on an outer circumferential surface of the rotation center shaft 32a, in which case the lead screw 33 may be snapped to the outer circumferential surface of the rotation center shaft 32a of the worm wheel 32, a fastening member such as a snap ring for suppressing the axial separation or relative rotation of the rotation center shaft 32a and the lead screw 33 should be provided at an end portion of the rotation center shaft 32a to ensure that the rotation center shaft 32a and the lead screw 33 rotate with the worm wheel 32 in an integral structure.

As shown in fig. 2 and 3, the sliding gear box 30 is further provided with a housing 34 for rotatably mounting the worm 31, the worm wheel 32 and the lead screw 33, and the housing 34 may be fixedly mounted to the moving rail 20.

The housing 34 is provided with a first penetrating portion 34a for mounting the worm 31 and a second penetrating portion 34b for rotatably mounting the worm wheel 32 and the screw 33, wherein the first penetrating portion 34a is disposed along a direction intersecting a forward and backward movement direction of the moving rail 20 and may be perpendicular to the movement direction of the moving rail 20, the second penetrating portion 34b is disposed in a direction coincident with the movement direction of the moving rail 20, the first penetrating portion 34a is configured to rotatably support both ends of the worm 31, one end of the second penetrating portion 34b is connected to the worm wheel 32, the other end is connected to the screw 33, and the second penetrating portion 34b rotatably supports both ends.

In summary, when the sliding gear box 30, the moving rail 20 and the fixed rail 10 are assembled together, the screw thread on the screw rod 33 is engaged with the guide groove 11 on the fixed rail 10, the worm 31 is driven by a motor (not shown) to rotate, the worm wheel 32 and the screw rod 33 are driven to rotate, the screw thread on the screw rod 33 advances or retreats along the guide groove 11 on the fixed rail 10, and the moving rail 20 advances or retreats relative to the fixed rail 10.

The sliding device for the vehicle seat does not comprise a long lead screw for supporting the seat, the configuration of the track piece is changed into a groove-shaped section structure for strengthening rigidity, and the channel-shaped section structure can disperse stress when a vehicle collision accident happens and can bear high-strength impact without bending, so that the problems of strength reduction and bending caused by the impact of the existing lead screw can be fundamentally eliminated, the total weight of the sliding device is reduced, and the manufacturing cost of the sliding device is reduced. In the embodiment, the seat back and forth movement depends on the driving of the gear box instead of a long lead screw structure, so that the problems of bending and strength reduction of the lead screw when a vehicle collision accident happens can be solved except that the travel distance in the front and back direction of the seat is longer than that in the past, the problems of vibration and noise during the sliding operation are solved, and the seat sliding device suitable for the environment-friendly intelligent automatic driving automobile is provided.

The above description is only for illustrating the technical idea of the present application, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention, and the above description is only a preferred embodiment of the present application, and is not intended to limit the present application, so any modification, equivalent replacement, and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a seat slider for car, is provided with the trapped orbit of installing on the inside floor of car and installs the removal track in the seat below, its characterized in that is provided with the slip gear box between trapped orbit and the removal track, the slip gear box is provided with the worm that links to each other with the motor, the worm wheel that meshes mutually with the worm, the lead screw that links to each other and integrative rotation with the worm wheel, be provided with the guide way with worm wheel mesh on the trapped orbit, the slip gear box can drive the removal track and advance or the retrusive motion on the trapped orbit.

2. The seat sliding apparatus for an automobile as recited in claim 1, wherein the worm is provided along a direction crossing a forward and backward moving direction of the moving rail, and the worm wheel and the screw are provided along the forward and backward moving direction of the moving rail.

3. The seat sliding apparatus for an automobile as recited in claim 1, wherein the worm wheel and the screw are integrally formed.

4. The seat sliding apparatus for an automobile as recited in claim 1, wherein the worm wheel has a rotation center shaft extending in an axial direction at a center thereof, the lead screw is allowed to be caught to an outer peripheral surface of the rotation center shaft of the worm wheel, and a fastening member is provided at an end of the rotation center shaft.

5. The seat sliding apparatus for automobile as claimed in claim 1, wherein the sliding gear box is further provided with a housing rotatably mounting the worm, the worm wheel and the lead screw, the housing being fixedly mounted to the moving rail.

6. The seat sliding apparatus for an automobile as recited in claim 5, wherein the housing is provided with a first penetration portion for mounting the worm and a second penetration portion for rotatably mounting the worm wheel and the screw, the first penetration portion is provided in a direction crossing a forward and backward movement direction of the moving rail, and the second penetration portion is provided in a direction coinciding with a traveling direction of the moving rail.

7. The seat sliding apparatus for automobile as claimed in claim 1, wherein the fixing rail has a channel structure with an open top, a bottom portion is provided adjacent to a side of an inner floor of the automobile, both ends of the bottom portion are disposed opposite to each other, a side wall portion is bent in a vertical direction and extends toward a top portion, a pair of reinforcing portions are horizontally extended from upper free ends of the pair of side wall portions and then bent downward again into an inner space, and guide grooves are provided on partial cross sections of a horizontal surface and a vertical surface where the reinforcing portions are bent.

8. The seat sliding apparatus for an automobile as recited in claim 7, wherein the guide groove is formed in a form of a cut part of material at a bend of the reinforcement portion.